Planimeter.



S. F. CONNOLLY & V. OSBORNE.

PLANIMETER.

APPLICATION FILED APR. 24, 1908.

Patented Apr. 6, 1909.

2 SHEETS-SHEET 1.

nu: nomas Pumas' cn., wasnmaron, a. `c.

S. F. CONNOLLY & V. OSBORNE.

PLANIMBTER. A APPLICATION FILED APR. 24, 190e.

Patented Apr. 6, 1909.

2 SHEETS-SHEET 2.

UNE

f; sentirse SAMUEL FREDERICK CONNOLLY AND VIVIAN OSBORNE, OF LONDON, ENGLAND.

PLANIME TER Specification of Letters Patent.

Patented April 6, 1909.

Application filed April 24, 1908. Serial No. 429,100.

To all whom it may concern/ Be it known that we, SAMUEL lT-Rnnnnici OONNOLLY and Vivian OSBORNE, subjects of the King of Great Britain, residing at London, England, have invented certain new and useful improvements in Planimeters, of whichL the folowing is a specification.

The object of our invention is certain ini-- provenients connected with apparatus such as planimeters and areanieters of the kind referred to in Patent No. 812674 13th ATeloruary 1906, for measuring and indicating the superficial area of laides, skins, and other surfaces, wherehy the necessity of lifting such apparatus by hand is done away with, a lifte ing device and appliances being provided for the purpose, thus enabling the measuring of av quantity of leather or other surfaces to e eHected with much greater speed than can t done with planimeters and areaineters which are not provided with our lifting device and counterweight or halancing appliances.

1n the annexed drawings illustrating our invention, ligure 1 is a plan, and lig. 2 an elevation showing a planimeter or measuring appliance or apparatus fitted with a counter'- halance arm and mechanism for raising and suspending the whole apparatus in the manner shown in Fig. 3.

For the purpose of illustration or to demonstrate a practical application of the invention a track ring is shown in the accompanying drawing for the traveling wheel. forming a part of the planimeter, hut this track ring is a secondary feature of the invention.

For the purpose of our present invention, we fit an additional horizontal arm 1 to the planimeter or areameter 2, said arm 1 being hinge jointed as at 3, at one end to the 'fixed center of motion 4, its other' or outer end carrying a weight or a weighted roller 5, which runs over the track 6. This additional arm 1 and weight or weighted roller 5 acts as a balance or counterpoise for the planimeter appliances 2, so that by connecting` the center of the drole apparatus to a cord 7, wire, or chain ruiming over an overhead pulley or pulleys 8, the complete machine and its disk or track 6 can be readily raised supported or suspended, and lowered 7oetwf-nen each operation.

' The pulleys employed may he of the clutch or self holding type, or of the ordinary kind, in which case a counterweight 9 would he necessary.

The connection of the cord 7 to the machine is hy swivel 10 or hall and socket or similar' joint to allow for any side movement and of free rotation witl'iout twistingl the cord 7 What we do claim and desire to secure hy `Letters Patent is 1. ln a measuring instrument of the class specified the combination with a planimcter, having a Yfixed center means, of an arm hinged at one end to the liXed center means, a weighted means at the other end of said arm, a joint device connected to the instrument at the center means, a suspending means connected to the joint device for supporting, raising and lowering the instrument pulleys engaged loy the suspending means, and a weight attached to the suspending means.

2. An instrument of the class specified., the combination with a planimeter havin(T a fixed center means, of a counterpoise appliance movaloiy connected to the fixed center means and provided with a weight at its free extremity, and a weighted cord and pulley mechanism for raising, lowering, supporting, or suspending the mechanism.

ln testimony whereof we have hereunto set our hands in the presence of two suhscriliing witnesses.

SAMUEL FREDERICK CONNOLLY. VVIAN OSBORNE.

l/Vitnesses JOHN E. BURGE, ERNEST O, H. Mouais. 

